低气压环境被服系统总热阻计算模型.pdf

第39卷第4期
土木建筑与环境工程
VOL 39 No 4
2017年8月
Journal of Civil, Architectural & Environmental Engineering
Aug.2017
dloi:10.11835/j.issn.1674-4764.2017.04.002
低气压环境被服系统总热阻计算模型
张华玲,姚大军,洪诗尧
重庆大学城市建设与环境工程学院,重庆100045)
摘要:服装热阻是影响人体热舒适的重要因素之一,夜间睡眠状态下的被服系统总热阻包括人体
所穿服装热阻与整个床褥系统热阻。针对低气压环境,目前,尚缺乏被服热阻实验数据,也没有可
参考的被服系统总热阻的理论计算模型。以人体睡眠状态被服系统总热阻计算方法为依据,引入
气压修正项对相关参数进行修正,建立了适用于低气压环境的被服系统总热阻的修正计算模型,并
用模型计算了冬夏典型被服系统总热阻,分析了气压减小对总热阻的影响,发现冬夏季被服系统总
热阻均随大气压力降低而升高,増加百分比最大值均为42%,且均出现在被子覆盖率为23.3%的
条件下,当海拔低于3000m时,由被子覆盖率引起的被服系统总热阻增加系数不超过0.05
关键词:低气压环境:病人;被服系统总热阻;压力修正:计算模型
中图分类号:TU831.8文献标志码:A文章编号:1674-4764(2017)04-0006-05
Calculation model of total thermal resistance of bedding and
clothing system in low pressure environments
Zhang Hualing, Yao Dajun, Hong Shiyao
(Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongging400045P R. China
Abstract: Clothing thermal resistance is a key factor that affects the thermal comfort of human body. The
total thermal resistancc of bedding and clothing system in sleeping at night includes the clothing
systcm resistancc and the body of the mattress system. In the low pressure cnvironment, there is still a
lack of experimental data and calculation model of thermal resistance, with no reference to theory
models. In this paper, based on calculation method of the total thermal resistance of bedding and clothin
system in sleeping, the calculation model of total thermal resistance in low pressure environment is
established by the introduction of pressure correction of related parameters. The typical total thermal
resistance both summer and winter is calculated using the model. The variation rules of total thermal
resistance caused by the pressure reducing is obtained. At altitude of less than 3000m, the increasing
coefficient of total thermal resistance of bedding and clothing system caused by the coverage ratio of blanke
is not more than 0. 05. The total thermal resistances both winter and summer increase with atmospheric
pressure decreasing. There is a same maximum percentage of 12% under the condition of 23.3% of blanket
coverage.
收稿日期:2016-10-19
基金项目:阿家自然科学基金(51278506)
作者简介:张华玲(1967-)?女?教授,主要从事建筑节能与人体热舒适研究,( E-mail) hezhang(a cql.edu.cn。
Received.2016-10-19
Foundation item: Natural Science Foundation (No. 51278506)
Author brief: Zhang Hualing (1967-). professor, main research interests: building energy saving and human thermal
omfort,(e-mail)hezhang(@cqu.edu.cn
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